![]() ![]() Parenthesized list of column names on the left and a Scalar expressions are evaluated before any assignments are made.īeginning in SQLite version 3.15.0 (), an assignment in The scalarĮxpressions may refer to columns of the row being updated. That do not appear in the list of assignments are left unmodified. If a single column-name appears more than once in the list ofĪssignment expressions, all but the rightmost occurrence is ignored. EachĪssignment specifies a column-name to the left of theĮquals sign and a scalar expression to the right.Īre set to the values found by evaluating the corresponding scalarĮxpressions. The modifications made to each row affected by an UPDATE statement areĭetermined by the list of assignments following the SET keyword. Means that the UPDATE statement affects zero rows. WHERE clause does not evaluate to true for any row in the table - this just Otherwise, the UPDATE affects only thoseīoolean expression is true. If the UPDATE statement does not have a WHERE clause, all rows in the ![]() Qualified-table-name specified as part of the UPDATE statement. Zero or more rows of the database table identified by the exit command or Ctrl+ D.GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING RANGE ROWS UNBOUNDED PRECEDING expr PRECEDING CURRENT ROW expr PRECEDING CURRENT ROW expr FOLLOWING expr PRECEDING CURRENT ROW expr FOLLOWING EXCLUDE CURRENT ROW EXCLUDE GROUP EXCLUDE TIES EXCLUDE NO OTHERSĪn UPDATE statement is used to modify a subset of the values stored in You can exit the interactive sqlite3 shell again using the. All other commands are common SQL, you should search for a basic SQL tutorial to learn them. help at the sqlite> prompt or read its manpage man sqlite3. To get help with commands specific to SQLite3's interactive shell (commands starting with a period), type. Therefore we need the SQL command SELECT * FROM style_meta (don't forget the semicolon!): sqlite> SELECT * FROM style_meta Let's display the style_meta table completely with all columns. We see the two tables style_meta and styles listed. ![]() In the next step we list all tables of the main (default) database: sqlite>. You see the database we just opened is now called main. databasesĠ main /home/bytecommander/.mozilla/firefox/fault/styl databases command (file name is truncated because it's so long): sqlite>. You can now see the list of loaded databases using the. Note that Tab completion works here and will help you to enter the path to your database file. open "/home/bytecommander/.mozilla/firefox/fault/stylish.sqlite" Enter this to the sqlite> prompt (again using the same Firefox add-on database as above, you will type a different path of course). The first thing you must do now is to open the database file. Then you get an interactive SQLite3 command prompt, like this: $ sqlite3 -column -header You install sqlite3 using the command sudo apt install sqlite3Īnd then run it with the following command ( -column and -header option for better readability of the output, see man sqlite3 for more info): sqlite3 -column -header This method requires you to know at least a basic set of SQL commands and is better suited for advanced users or if you need to parse the output in a script. Of course you can also do this from the command-line, using e.g. You select which table to display in the "Table:" combobox. I already switched to the Browse Data tab on the left panel, where you can view the database table contents now. It will then display something like this (here displaying the database of a Firefox add-on for applying user styles): ![]() In the main window you can click Open database to open your *.sqlite file. You can install it with the command sudo apt install sqlitebrowserĪnd run it from the launcher/dash/application menu or using the command sqlitebrowser It offers you to easily explore a database without having to know SQL commands. Let's start with the more user-friendly way and use the GUI tool sqlitebrowser. ![]()
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